package number;

public class tolowercase {
public static void main(String args[]) {
	String s1=new String("abcDEF");
	String s2=new String("ABCdef");
	String s3=s1.toLowerCase();
	String s4=s2.toLowerCase();
	String s5=s1.toUpperCase();
	String s6=s2.toUpperCase();
	System.out.println(s3);
	System.out.println(s4);
}
}
